JPH0640331Y2 - Positioning pin - Google Patents
Positioning pinInfo
- Publication number
- JPH0640331Y2 JPH0640331Y2 JP7868689U JP7868689U JPH0640331Y2 JP H0640331 Y2 JPH0640331 Y2 JP H0640331Y2 JP 7868689 U JP7868689 U JP 7868689U JP 7868689 U JP7868689 U JP 7868689U JP H0640331 Y2 JPH0640331 Y2 JP H0640331Y2
- Authority
- JP
- Japan
- Prior art keywords
- positioning
- positioning pin
- fixing member
- fixing
- outer diameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000919 ceramic Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 description 14
- 239000002184 metal Substances 0.000 description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 238000003466 welding Methods 0.000 description 9
- 229910052742 iron Inorganic materials 0.000 description 6
- 229910010293 ceramic material Inorganic materials 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- 102200082816 rs34868397 Human genes 0.000 description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000001272 pressureless sintering Methods 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 102220005308 rs33960931 Human genes 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Insertion Pins And Rivets (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、位置決めピン、詳しくは、例えば自動車等の
製造工程において、板金の位置決めを行いそれを溶接す
る際に使用される位置決めピンに関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a positioning pin, and more particularly to a positioning pin used for positioning a sheet metal and welding it in a manufacturing process of, for example, an automobile.
従来、位置決めピンはS45Cなどの金属が使用されている
が、耐摩耗性や耐蝕性が充分でないので、機械的衝撃に
よる破損や溶接時のスパークによる折損により板金枚数
が5,000〜50,000枚程度の取扱い量で寿命となる欠点が
あつた。Conventionally, the positioning pin is made of metal such as S45C, but since it is not sufficiently resistant to wear and corrosion, it is possible to handle about 5,000 to 50,000 sheet metal sheets due to damage due to mechanical shock or breakage due to sparks during welding. There was a shortcoming that the amount of life would end up.
本考案者らは、従来の位置決めピンの欠点を解決するこ
とを目的として種々検討した結果、位置決めピンの位置
決め部をセラミツクス質とし、固定部と導入部を金属質
にすると板金の装入・抜き山し時の機械的衝撃による破
損現象が発生せず長寿命化が達成されることを見出し、
さらに位置決め部材の形状に改良を加えて本考案を完成
した。As a result of various studies aimed at solving the drawbacks of the conventional positioning pins, the present inventors have found that when the positioning portion of the positioning pin is made of ceramic material and the fixing portion and the introduction portion are made of metal, the sheet metal is loaded and unloaded. It was found that a long life can be achieved without causing a damage phenomenon due to a mechanical impact at the time of digging.
The present invention was completed by further improving the shape of the positioning member.
すなわち、本考案は、金属質の固定部材１の上面に、貫
通孔を有するセラミツクス質の位置決め部材２を配置
し、その貫通孔を通して金属質の導入部材３を上記固定
部材１に装着してなり、しかも上記位置決め部材２は外
径／内径比が1.5〜3.5で長さ／外径比が0.6〜3.5である
ことを特徴とする位置決めピンである。That is, according to the present invention, a ceramic positioning member 2 having a through hole is arranged on the upper surface of a metallic fixing member 1, and a metallic introducing member 3 is attached to the fixing member 1 through the through hole. Moreover, the positioning member 2 is a positioning pin having an outer diameter / inner diameter ratio of 1.5 to 3.5 and a length / outer diameter ratio of 0.6 to 3.5.
以下、本考案を図面に基づいて詳細に説明する。Hereinafter, the present invention will be described in detail with reference to the drawings.
第１図は、本考案の位置決めピンの一実施例を示す一部
切欠断面図であり、第２図は、位置決め部材２の断面図
である。すなわち、本考案の位置決めピンは、特定形状
の位置決め部材２が固定部材１の上面に位置し、その貫
通孔を通して導入部材３が固定部材１に装着された構造
からなつているものである。FIG. 1 is a partially cutaway sectional view showing an embodiment of a positioning pin of the present invention, and FIG. 2 is a sectional view of a positioning member 2. That is, the positioning pin of the present invention has a structure in which the positioning member 2 having a specific shape is located on the upper surface of the fixing member 1, and the introducing member 3 is attached to the fixing member 1 through the through hole.
導入部材３と固定部材１とを固定する際には、導入部材
の直胴部６が固定部材１に案内（挿入）されていること
が望ましい。それによつて、導入部材の直胴部６の一部
が固定部材１に設けた導入部材の直胴部６の直径よりも
わずかに大きい直径を有する凹部にはまり込むことにな
る結果、構造的により強固なものとなる。When fixing the introducing member 3 and the fixing member 1, it is desirable that the straight body portion 6 of the introducing member is guided (inserted) in the fixing member 1. As a result, a part of the straight body portion 6 of the introducing member is fitted into a recess having a diameter slightly larger than the diameter of the straight body portion 6 of the introducing member provided in the fixing member 1, and as a result, the structure is more structurally improved. It will be strong.
固定部材１には、本考案の位置決めピンを例えば溶接機
など（図示してなし）に取り付けるために、ネジ部５や
テーパー部（図示してなし）などの取付手段を設けてお
くのが望ましい。勿論、取付手段を設けることなく溶接
・接着等によつて本考案の位置決めピンを取り付けるこ
ともできる。第１図に示された固定部材１の頭部は外周
方向に拡大された形状となつているが、これは溶接機な
どに都合よく取り付けるための措置であつて、本考案で
は必ずしも必要でない。It is desirable that the fixing member 1 is provided with an attaching means such as a screw portion 5 or a taper portion (not shown) for attaching the positioning pin of the present invention to, for example, a welding machine (not shown). . Of course, the positioning pin of the present invention can be attached by welding, bonding or the like without providing any attaching means. The head portion of the fixing member 1 shown in FIG. 1 has an enlarged shape in the outer peripheral direction, but this is a measure for convenient attachment to a welding machine or the like, and is not necessarily required in the present invention.
固定部材１と導入部材３の材質は、金属質であり、炭素
鋼（S45C,S50Cなど）、クロムモリブデン鋼（SCM）、合
金工具鋼（SKS,SKDなど）、ステンレス鋼（SUS）などか
ら適切なものが選択される。The material of the fixing member 1 and the introducing member 3 is metallic, and is suitable from carbon steel (S45C, S50C, etc.), chrome molybdenum steel (SCM), alloy tool steel (SKS, SKD, etc.), stainless steel (SUS), etc. Is selected.
位置決め部材２は、固定部材１と導入部材３とを螺着と
し、その締付圧力によつて固定されるのが望ましい。そ
れによつて、使用時における固着力が例えば接着剤で固
定した場合よりも大となり、しかも破損等をしたときに
取替えが容易となる。しかし、接着剤による固定あるい
は接着剤と併用する固定であつても何ら差支えはない。It is desirable that the positioning member 2 be screwed to the fixing member 1 and the introducing member 3 and fixed by the tightening pressure. As a result, the fixing force at the time of use becomes larger than that when it is fixed with an adhesive, for example, and when it is damaged or the like, replacement becomes easy. However, there is no problem in fixing with an adhesive or fixing with an adhesive.
位置決め部材２の材質は、窒化けい素質、サイアロン、
ジルコニアなどのセラミツクス質から選択されるが、窒
化けい素は耐摩耗性にすぐれるので好適である。セラミ
ツクスの焼結方法としては、常圧焼結、ホツトプレス、
HIPから選ぶことができる。The positioning member 2 is made of silicon nitride, sialon,
Although it is selected from ceramic materials such as zirconia, silicon nitride is preferable because it has excellent wear resistance. The ceramics can be sintered by pressureless sintering, hot pressing,
You can choose from HIP.
位置決め部材２の形状は、第２図に示すように、内部に
貫通孔を有する円形であり、その寸法は、外径／内径比
が1.5〜3.5で、長さ／外径比が0.6〜3.5である。外径／
内径比が1.5未満ではセラミツクス質部材が薄肉厚とな
つて機械的衝撃に弱くなり、一方、該比が3.5を超える
とセラミツクス質部材が肉厚となつて導入部材３のネジ
部４が細くなり機械的衝撃により折損しやすくなる。ま
た、長さ／外径比が0.6未満では、セラミツクス質部材
が短かくなり、板金と金属質の導入部材３が電気溶接時
にスパーク現象が生じて点溶接状態となり、板金の抜き
出し時に機械的衝撃によりネジ部４又はネジ部５が折損
するおそれが大となる。一方、長さ／外径比が3.5を越
えると、金属質の導入部材３の先端が鈍角となり、板金
の装入・抜き出し時の機械的衝撃によりネジ部４又はネ
ジ部５が折損しやすくなる。As shown in FIG. 2, the positioning member 2 has a circular shape having a through hole inside, and its dimensions are an outer diameter / inner diameter ratio of 1.5 to 3.5 and a length / outer diameter ratio of 0.6 to 3.5. Is. Outer diameter /
If the inner diameter ratio is less than 1.5, the ceramic material becomes thin and weak against mechanical shock, while if it exceeds 3.5, the ceramic material becomes thick and the threaded portion 4 of the introducing member 3 becomes thin. It easily breaks due to mechanical shock. Also, if the length / outer diameter ratio is less than 0.6, the ceramic material becomes short, the sparking phenomenon occurs in the sheet metal and metal introduction member 3 during electric welding, and it becomes a point welding state, and mechanical impact during sheet metal extraction. Therefore, the screw portion 4 or the screw portion 5 is likely to be broken. On the other hand, if the length / outer diameter ratio exceeds 3.5, the tip of the metallic introducing member 3 becomes an obtuse angle, and the screw portion 4 or the screw portion 5 is easily broken due to a mechanical impact when the sheet metal is loaded or unloaded. .
以下、本考案を実施例と比較例をあげてさらに具体的に
説明する。Hereinafter, the present invention will be described more specifically with reference to Examples and Comparative Examples.
固定部材１をS45C、位置決め部材２を常圧焼結で製造さ
れた窒化けい素製で第１表に示す形状を有するもの、そ
して導入部材３をSKD11とし、ネジ部４に市販のアクリ
レート系接着剤を塗つて位置決め部材２と導入部材３の
外周面に段差がないように螺合して導入部材の直胴部６
が固定部材１に案内されてなる第１図に示すような構造
の位置決めピンを製作した。全体寸法は、およそ高さ50
mm×直径10.7mmである。The fixing member 1 is S45C, the positioning member 2 is made of silicon nitride manufactured by pressureless sintering and has the shape shown in Table 1, and the introducing member 3 is SKD11, and the screw portion 4 is commercially available acrylate adhesive. A straight body portion 6 of the introduction member 6
A positioning pin having a structure as shown in FIG. Overall dimensions are approximately 50 in height
mm x diameter 10.7 mm.
以上の位置決めピンを自動車の製造工程に使用し位置決
めピンが使用不可能となる鉄板の溶接枚数を測定した。
その結果を第１表に示す。The above positioning pins were used in the automobile manufacturing process, and the number of welded iron plates where the positioning pins could not be used was measured.
The results are shown in Table 1.
実験番号１〜５の実施例は鉄板の装入・抜き出し時の機
械的衝撃にも充分耐え、寿命も従来の位置決めピンに比
べて大幅に延び150,000枚以上の鉄板溶接が達成され
た。 The examples of Experiment Nos. 1 to 5 were sufficiently resistant to mechanical shock during loading and unloading of iron plates, and the life was significantly extended compared to the conventional positioning pins, and welding of 150,000 or more iron plates was achieved.
これに対して、実験番号７と９の比較例は鉄板を1200〜
1300枚溶接した時に位置決め部材２が破損した。また、
実験番号６と10の比較例は鉄板を500〜1500枚溶接した
時にネジ部４が折損した。実験番号８の比較例は鉄板10
0枚溶接した時にネジ部４が折損した。以上の折損した
ピンには金属導入部材３の下部金属部に溶損が認められ
た。On the other hand, in the comparative examples of Experiment Nos. 7 and 9, the iron plate is 1200-
The positioning member 2 was damaged when 1300 sheets were welded. Also,
In the comparative examples of Experiment Nos. 6 and 10, the screw part 4 was broken when 500 to 1500 iron plates were welded. Iron plate 10 is the comparative example of experiment number 8.
The screw part 4 was broken when 0 sheets were welded. Melting damage was observed in the lower metal part of the metal introducing member 3 in the above-mentioned broken pin.
本考案の位置決めピンは、耐摩耗性にすぐれ、しかも板
金の装入・抜出し時の機械的衝撃に充分耐え、溶接時の
スパークによる折損もなく大幅な長寿命化が達成でき
る。The locating pin of the present invention has excellent wear resistance, and can sufficiently withstand mechanical impact during loading and unloading of sheet metal, and can achieve a significantly long life without breakage due to sparks during welding.
第１図は、本考案の位置決めピンの一例を示す一部切欠
断面図であり、第２図は、セラミツクス質の位置決め部
材２の断面図である。 １…金属質の固定部材 ２…セラミツクス質の位置決め部材 ３…金属質の導入部材 4,5…ネジ部 ６…導入部材の直胴部FIG. 1 is a partially cutaway sectional view showing an example of a positioning pin of the present invention, and FIG. 2 is a sectional view of a ceramic quality positioning member 2. 1 ... Metal fixing member 2 ... Ceramics positioning member 3 ... Metal introducing member 4,5 ... Screw part 6 ... Straight body part of introducing member
Claims (1)
を有するセラミツクス質の位置決め部材（２）を配置
し、その貫通孔を通して金属質の導入部材（３）を上記
固定部材（１）に装着してなり、しかも上記位置決め部
材（２）は外径／内径比が1.5〜3.5で長さ／外径比が0.
6〜3.5であることを特徴とする位置決めピン。1. A ceramic positioning member (2) having a through hole is disposed on the upper surface of a metallic fixing member (1), and a metallic introducing member (3) is inserted through the through hole to fix the fixing member (3). 1) and the positioning member (2) has an outer diameter / inner diameter ratio of 1.5 to 3.5 and a length / outer diameter ratio of 0.1.
Positioning pin characterized by 6 to 3.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7868689U JPH0640331Y2 (en) | 1989-07-05 | 1989-07-05 | Positioning pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7868689U JPH0640331Y2 (en) | 1989-07-05 | 1989-07-05 | Positioning pin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0319110U JPH0319110U (en) | 1991-02-25 |
| JPH0640331Y2 true JPH0640331Y2 (en) | 1994-10-19 |
Family
ID=31622171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7868689U Expired - Lifetime JPH0640331Y2 (en) | 1989-07-05 | 1989-07-05 | Positioning pin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0640331Y2 (en) |
-
1989
- 1989-07-05 JP JP7868689U patent/JPH0640331Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0319110U (en) | 1991-02-25 |
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